I definitaly like the idea of cryopods as a log out point, maybe as a respawn point that reward the user for using them, but if you do need to go in a rush you could always log out from any spot, and return to those blocks at a later point. so long as nothing has been built there. If something has been built there you would spawn at the nearest safe location. Logging out should definitaly have a maybe 5 minute period where you are still vulnerable and fading away, to prevent combat logging and all that. Depending on the duration of space battles that may have to be increased.